<?php

class PostController extends Controller
{
    /**
    * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
    * using two-column layout. See 'protected/views/layouts/column2.php'.
    */
    public $layout='//layouts/column2';

    private $_model; 

    /**
    * @return array action filters
    */
    public function filters()
    {
        return array(
        //Use filters default        
        'accessControl', // perform access control for CRUD operations

        //Use filter of RightModules
        //'rights',    

        );
    }

    //public function allowedActions() { return 'index'; }


    /**
    * Specifies the access control rules.
    * This method is used by the 'accessControl' filter.
    * @return array access control rules
    */
    public function accessRules()
    {
        return array(
        array('allow',  // allow all users to perform 'list' and 'show' actions
        'actions'=>array('index', 'view'),
        'users'=>array('*'),
        ),
        array('allow', // allow authenticated users to perform any action
        'users'=>array('@'),
        ),
        array('deny',  // deny all users
        'users'=>array('*'),
        ),
        );
    }
    public function actionKhoa()
    {
        require_once('application.vendors.domit.xml_domit_include.php');
        $domit = new DOMIT_Document();
        $path = 'capture.xml';
        $success = $domit->loadXml($path);
        if ($success)
        {
            $docElement = $domit->documentElement;
            echo $docElement->toNormalizedString(true);
        }
        else
        {
            echo 'Failed to load XML';
        }
    }
    /**
    * Displays a particular model.
    * @param integer $id the ID of the model to be displayed
    */
    public function actionView($alias)
    {    
        $obj=Post::model()->find('alias=:alias',array(':alias'=>$alias));

        $post=$this->loadModel($obj->id);
        $comment=$this->newComment($post);

        $dPCommnent=new CActiveDataProvider('Comment',array(
        'pagination'=>array(
        'pageSize'=>2,
        ),
        'criteria'=>array(

        'condition'=>'status=2 AND post_id='.$post->id,

        ),
        ));

        $this->render('view',array(
        'model'=>$post,
        'dPComment'=>$dPCommnent,
        'comment'=>$comment,
        ));
    }

    /**
    * Creates a new model.
    * If creation is successful, the browser will be redirected to the 'view' page.
    */
    public function actionCreate()
    {
        if(Yii::app()->user->checkAccess('Post.Create'))
        {
            $model=new Post;
            $model-> create_time=date('Y-m-d',time());
            // Uncomment the following line if AJAX validation is needed
            // $this->performAjaxValidation($model);

            if(isset($_POST['Post']))
            {

                $_POST['Post']['create_time']=date('Y-m-d',strtotime($_POST['Post']['create_time']) ); 
                $alias=$_POST['Post']['alias']==''?$_POST['Post']['title']:$_POST['Post']['alias'];
                $_POST['Post']['alias']=$model->CheckExistAlias($model->stringURLSafe($alias),0);

                //Instance Image
                $file=CUploadedFile::getInstance($model,'image');
                if($file!=null)
                {
                    $imagename= $id.'.'.$file->getExtensionName();
                    $_POST['Post']['image']=$imagename;
                    $file->saveAs('images/'.$imagename);
                }
                //Enable set atributes for model
                $model->setAttributes($_POST['Post'],false) ;

                if($model->save())
                    $this->redirect(array('view','alias'=>$model->alias));
            }

            $this->render('create',array(
            'model'=>$model,
            ));  
        }


    }

    /**
    * Updates a particular model.
    * If update is successful, the browser will be redirected to the 'view' page.
    * @param integer $id the ID of the model to be updated
    */
    public function actionUpdate($id)
    {
        if(Yii::app()->user->checkAccess('Post.Update'))
        {
            $model=$this->loadModel($id);
            // Uncomment the following line if AJAX validation is needed
            // $this->performAjaxValidation($model);    

            if(isset($_POST['Post']))
            {
                $alias=$_POST['Post']['alias']==''?$_POST['Post']['title']:$_POST['Post']['alias'];
                $_POST['Post']['alias']=$model->CheckExistAlias($model->stringURLSafe($alias),$id);     

                $attributes=$model->attributes;
                $model->AutoTimestampBehavior->beforeValidate($on);
                //echo $model->update_time;die(); 

                $file=CUploadedFile::getInstance($model,'image');

                if($file!=null)
                {
                    $imagename= $id.'.'.$file->getExtensionName();
                    $_POST['Post']['image']=$imagename;
                    $file->saveAs('images/'.$imagename);    
                }
                else
                {
                    unset($attributes['image']);
                }
                $attributes=array_keys($attributes);
                //Enable set atributes for model
                $model->setAttributes($_POST['Post'],false) ;
                if($model->save(true,$attributes))
                {
                    //save as images in folder root/images
                    //redirect to post/view
                    $this->redirect(array('post/view','alias'=>$model->alias));
                }

            }

            $this->render('update',array(
            'model'=>$model,
            ));
        }
    }

    /**
    * Deletes a particular model.
    * If deletion is successful, the browser will be redirected to the 'admin' page.
    * @param integer $id the ID of the model to be deleted
    */
    public function actionDelete($id)
    {
        if(Yii::app()->request->isPostRequest)
        {
            // we only allow deletion via POST request
            $this->loadModel($id)->delete();

            // if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
            if(!isset($_GET['ajax']))
                $this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
        }
        else
            throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
    }

    /**
    * Lists all models.
    */
    public function actionIndex()
    {        
        //$session=new CHttpSession;
        //$session->open();
        //var_dump(Yii::app()->session['username']); die();
        $criteria=new CDbCriteria(array(
        'condition'=>'status='.Post::STATUS_PUBLISHED,

        'order'=>'create_time DESC',
        'with'=>'commentCount',
        ));
        if(isset($_GET['tag']))
        {
            $criteria->addSearchCondition('tags',$_GET['tag']);

        }
        $dataProvider=new CActiveDataProvider('Post',array(
        'pagination'=>array(
        'pageSize'=>5,
        ),
        'criteria'=>$criteria,
        ));

        $this->render('index',array(
        'dataProvider'=>$dataProvider,
        ));
    }

    /**
    * Manages all models.
    */
    public function actionAdmin()
    {
        $model=new Post('search');
        $model->unsetAttributes();  // clear any default values
        if(isset($_GET['Post']))
            $model->attributes=$_GET['Post'];

        $this->render('admin',array(
        'model'=>$model,
        ));
    }

    /**
    * Returns the data model based on the primary key given in the GET variable.
    * If the data model is not found, an HTTP exception will be raised.
    * @param integer the ID of the model to be loaded
    */
    public function loadModel($id)
    {
        if($this->_model===null)
        {
            if($id>0)
            {
                if(Yii::app()->user->isGuest)
                    $condition='status='.Post::STATUS_PUBLISHED.' OR status='.Post::STATUS_ARCHIVED;
                else
                    $condition='';                
                $this->_model=Post::model()->findByPk($id,$condition);
            }
            if($this->_model===null)
                throw new CHttpException(404,'The requested page does not exist.');
        }
        return $this->_model;
    }

    /**
    * Performs the AJAX validation.
    * @param CModel the model to be validated
    */
    protected function performAjaxValidation($model)
    {
        if(isset($_POST['ajax']) && $_POST['ajax']==='post-form')
        {
            echo CActiveForm::validate($model);
            Yii::app()->end();
        }
    }

    protected function newComment($post)
    {
        $comment=new Comment;

        if(isset($_POST['ajax']) && $_POST['ajax']==='comment-form')
        {
            echo CActiveForm::validate($comment);
            Yii::app()->end();
        }

        if(isset($_POST['Comment']))
        {
            $comment->attributes=$_POST['Comment'];
            if($post->addComment($comment))
            {
                if($comment->status==Comment::STATUS_APPROVED)
                    Yii::app()->user->setFlash('commentSubmitted','Thank you...');
                $this->refresh();
            }
        }
        return $comment;
    }
    /**
    * Function add comment using ajax
    */
    public function actionAddNewComment()
    {
        $comment=new Comment;
        $comment->attributes=$_POST['Comment'];
        $post_id=$_POST['Post']['id'];            
        $post=$this->loadModel($post_id);

        $post->addComment($comment);            

        //$this->renderPartial('/comment/_view',array('model'=>$comment,),false,true);
        //Yii::app()->end(); // Not necessarily required, but it can't hurt

    }




    /**
    * This is the funtion remove image of the Post
    * Using Ajax in the Wiget Upload File
    * The View is extension/fupload/views/fupload.php 
    */
    public function actionDeleteImageOfPost($id)
    {    

        $model=Post::model()->findByPk($id);
        if($model->image!='')
        {
            $imagename=$model->image;
            $model->image="";
            if($model->save())
            {
                unlink(Yii::app()->basePath."/../images/".$imagename); 
                echo "This image has removed.";
            }
            else
            {
                echo "Has error! Can't remove image";    
            }

        }
    }

}
